bill-jr
Member
Posts: 1036
VRCC # 35094
murfreesboro
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« on: December 29, 2013, 11:39:52 AM » |
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99 tourer about 21000 miles on her ....
Took a little ride yesterday, bike ran great was racing around with my buddy on his cbr900 was a bit cold but we trudge on ... Any ways a few times we got up over 100 mph and I noticed a terrible high speed wobble with both hands on the bars.... Have not done anything recently to change anything put a stinko on the front a week before the dragon round up ride ? Have had it up to those speeds since with no problem.... What do y'all think ? Wheel bearings, neck bearings, tire, maybe forks ? Help me out guys I like to go fast .....
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Ever danced with the devil In the pale moon light ?
99' Black tourer
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BnB Tom
Member
Posts: 1708
Where'd old times go?
Frisco, TX
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« Reply #1 on: December 29, 2013, 01:05:56 PM » |
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I'll wade in with the obvious.
When you put the new tire on, did you use stick on wheel weights to balance?
If so, you might have thrown one.
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N8171S
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« Reply #2 on: December 29, 2013, 01:25:23 PM » |
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Put the bike on the side stand and jack the front wheel with a jack under the engine and check the steering head bearings for a sticky spot near the center of travel. One of my valks did the same thing @ 100 mph. Replacing the bearings corrected the problem. Coulc also be tire related.
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salty1
Member
Posts: 2359
"Flyka"
Spokane, WA or Tucson, AZ
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« Reply #3 on: December 29, 2013, 01:52:00 PM » |
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I very seldom reach those speeds, but when I do the bike is smooth as "glass" because of Dyna Beads. Also, I'm no fan of Shinko tires. FWIW
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« Last Edit: December 29, 2013, 04:07:09 PM by salty1 »
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My rides: 1998 GL1500C, 2000 GL 1500CF,2006 GL 1800 3A   |
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Momz
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« Reply #4 on: December 29, 2013, 02:45:29 PM » |
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The first thing to check is that the tires are properly inflated.
With the colder weather, the tires loose air pressure rather rapidly.
Happy New Year Bill
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 ALWAYS QUESTION AUTHORITY! 97 Valk bobber, 98 Valk Rat Rod, 2K SuperValk, plus several other classic bikes |
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Jess from VA
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« Reply #5 on: December 29, 2013, 03:08:37 PM » |
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I would always suspect the front tire, first. (esp if only at hi speed)
Maybe pressure, maybe balance, maybe tread irregularity, bent rim, possibly a bearing (doubt it).
Some have had a wobble from worn shock bushings in back (doubt it if only over a 100).
Head bearing?
I've had a bit of nastiness at higher speeds with bad road, bumps, and cross winds combining to get the front end shaking/wiggling/bouncing.
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« Last Edit: December 29, 2013, 03:17:02 PM by Jess from VA »
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IamGCW
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« Reply #6 on: December 29, 2013, 03:50:00 PM » |
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Swing arm loose?
Gil
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Gil
uıɐƃɐ ʎɐqǝ ɟɟo pɹɐoqʎǝʞ ɐ ʎnq ɹǝʌǝu ןן,ı
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The emperor has no clothes
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« Reply #7 on: December 29, 2013, 04:05:20 PM » |
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I very seldom reach those speeds, but when I do the bike is smooth as "glass" because of Dyno Beads. Also, I'm no fan of Shinko tires. FWIW
+1 |
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bill-jr
Member
Posts: 1036
VRCC # 35094
murfreesboro
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« Reply #8 on: December 29, 2013, 04:59:33 PM » |
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Ya once noticed I pulled over checked my pressures they where fine .... Shinko was not my first option but Mac had one on his shelf when I was in need so .... Beggers can't be choosers ... All the weights were still there ...... Will investigate further tomorrow after the work days over .... And with this old 86 goldwing I been tryin to get back to running order In my way .... Maybe need to build a bigger garage ....ha ..... Merry Christmas George.... And all and hoping everyone a happy new year ....
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Ever danced with the devil In the pale moon light ?
99' Black tourer
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Michvalk
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« Reply #9 on: December 29, 2013, 05:21:43 PM » |
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Might also check the torque on the steering head bearings  |
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Farther
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« Reply #10 on: December 30, 2013, 05:21:18 PM » |
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Check the condition of the rear shock bushings.
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Thanks,
~Farther
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bill-jr
Member
Posts: 1036
VRCC # 35094
murfreesboro
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« Reply #11 on: January 01, 2014, 04:24:00 PM » |
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May have found my problem
the bolts for my windshield were so loose the shield would move forward and back an inch or so haven't gotten it back "up to speed" but I'll bet this had some factor ????
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Ever danced with the devil In the pale moon light ?
99' Black tourer
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salty1
Member
Posts: 2359
"Flyka"
Spokane, WA or Tucson, AZ
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« Reply #12 on: January 02, 2014, 06:31:48 AM » |
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May have found my problem
the bolts for my windshield were so loose the shield would move forward and back an inch or so haven't gotten it back "up to speed" but I'll bet this had some factor ????
That definitely could cause a wobble at high speed! Hope that was it.  |
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My rides: 1998 GL1500C, 2000 GL 1500CF,2006 GL 1800 3A |
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Mildew
Member
Posts: 464
Live, Not Just Exist
Auburn, Ga
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« Reply #13 on: January 04, 2014, 04:28:50 PM » |
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The first thing to check is that the tires are properly inflated.
With the colder weather, the tires loose air pressure rather rapidly.
Happy New Year Bill
+1 |
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Live, Not Just Exist
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john
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« Reply #14 on: January 05, 2014, 02:35:19 PM » |
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 99 tourer about 21000 miles on her .... i'd be guess'in its the stinko tire ...  nothing better to spend your money on than a good set of tires  good motorcycle tires are not cheap ... I ride the elite3 and keep 46-48 lbs of air in'em ... they last a lot longer  my oem windshield would flutter like crazy at 100 mph ... it made me wonder if anyone had ever been decapitated by a broken motorcycle windshield
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« Last Edit: January 05, 2014, 02:41:45 PM by john »
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vrcc # 19002
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Bighead
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« Reply #15 on: January 05, 2014, 04:05:53 PM » |
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I had a national Cycle heavy duty screen and never fluttered.
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1997 Bumble Bee
1999 Interstate (sold)
2016 Wing
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bill-jr
Member
Posts: 1036
VRCC # 35094
murfreesboro
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« Reply #16 on: January 05, 2014, 04:16:42 PM » |
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I havea clearview windshield the two top bolts were very loose the whole windshield was sliding in and out .... The tire is only a few months old but I do plan on getting a better one when I can ....
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Ever danced with the devil In the pale moon light ?
99' Black tourer
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Raider
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« Reply #17 on: January 06, 2014, 04:37:12 PM » |
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On a late September ride back from Maine, my bike developed a terrible wobble. It was about an hour into the ride and the temps were down in the high 30s.
I was leading so just kept calm as I assessed the situation. It only took a minute to realize that my ass, literally, my ass was shaking so bad from the cold that it made the bike seem like it was shaking. HAHAHA
Any chance the cold got to ya?
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bill-jr
Member
Posts: 1036
VRCC # 35094
murfreesboro
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« Reply #18 on: January 06, 2014, 04:46:34 PM » |
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No it wasn't too cold but my seat also was not latched In in the back so u could have been a bit shakey .... When I get back from Quincy Illinois I will take her for a spin and assess the situation ...
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Ever danced with the devil In the pale moon light ?
99' Black tourer
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Ricky-D
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« Reply #19 on: January 07, 2014, 06:56:10 AM » |
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Lots of time a wobble at high speed can be attributed to a
DEATH GRIP
Need to slow down when that occurs.
***
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2000_Valkyrie_Interstate
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fudgie
Member
Posts: 10613
Better to be judged by 12, then carried by 6.
Huntington Indiana
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« Reply #20 on: January 07, 2014, 12:37:34 PM » |
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Lots of time a wobble at high speed can be attributed to a
DEATH GRIP
Need to slow down when that occurs.
***
Yup! When I slowed down it got worse for about 5 mph on decel. |
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 Now you're in the world of the wolves... And we welcome all you sheep... VRCC-#7196 VRCCDS-#0175 DTR PGR |
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bill-jr
Member
Posts: 1036
VRCC # 35094
murfreesboro
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« Reply #21 on: January 07, 2014, 06:01:34 PM » |
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ha deathgrip I was just trying to keep the crotchrocket in my rear ....  I'm done with this Illinois weather ... Ready to get back to beautiful tennessee ... Won't be home until next Friday 
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Ever danced with the devil In the pale moon light ?
99' Black tourer
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